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# Copyright 2015 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import functools
import logging as base_logging
import mock
import testtools
import pypowervm.adapter as adp
import pypowervm.const as c
import pypowervm.exceptions as pvmex
import pypowervm.helpers.log_helper as log_hlp
import pypowervm.tests.test_fixtures as fx
# Testing by hand it's useful to enable the next line instead of the following
# logging.basicConfig(level=logging.INFO)
base_logging.basicConfig()
class TestLogHelper(testtools.TestCase):
def setUp(self):
super(TestLogHelper, self).setUp()
self.sess = self.useFixture(fx.SessionFx()).sess
@mock.patch('pypowervm.helpers.log_helper.LOG')
def test_log_helper(self, mock_log):
helpers = log_hlp.log_helper
response = adp.Response('GET', '/some/path', 200, 'OK', ['headers'])
self.sess.request.return_value = response
adpt = adp.Adapter(self.sess, helpers=helpers)
# Test that we get the response we expect passed back unharmed
self.assertEqual(response,
adpt._request('method', 'path', body='the body'))
# Should be 1 req/resp in the log now, which would be 4 info messages
mock_log.reset_mock()
log_hlp._write_thread_log()
self.assertEqual(mock_log.info.call_count, 4)
# Should be empty now
mock_log.reset_mock()
log_hlp._write_thread_log()
self.assertEqual(mock_log.info.call_count, 0)
# Test that we limit the number of entries
mock_log.reset_mock()
for x in range(0, 30):
adpt._request('method1', 'path', body='the body %d' % x)
log_hlp._write_thread_log()
# Each req/resp pair is 2 log entries but headers and body
# are logged separately, so with maxlogs=3, it's 3 * 2 * 2.
self.assertEqual(mock_log.info.call_count, (3 * 2 * 2))
mock_log.reset_mock()
# Add a few records
adpt._request('method1', 'path', body='the body')
# Ensure a 412 (special case) doesn't dump, but does raise
self.sess.request.side_effect = pvmex.HttpError(mock.Mock(
status=c.HTTPStatus.ETAG_MISMATCH))
self.assertRaises(
pvmex.HttpError, adpt._request, 'method2', 'path', body='the body')
self.assertEqual(0, mock_log.info.call_count)
# Ensure a non-412 exception dumps the logs and is then raised
self.sess.request.side_effect = pvmex.HttpError(mock.Mock(
status=c.HTTPStatus.INTERNAL_ERROR))
mock_log.reset_mock()
self.assertRaises(
pvmex.Error, adpt._request, 'method', 'path', body='the body')
# Should be 10 entries. 4 * 2 req/resp, 2 for this req.
self.assertEqual(mock_log.info.call_count, 10)
# Ensure the log storage is initialized correctly, and we can change
# the default value
hlp_size = functools.partial(log_hlp.log_helper, max_logs=12)
adpt1 = adp.Adapter(self.sess, helpers=hlp_size)
self.sess.request.side_effect = None
with mock.patch('pypowervm.helpers.log_helper.'
'_init_thread_stg') as mock_init:
adpt1._request('method1', 'path', body='the body')
# Should be called with 24 since 12 * 2 entries.
self.assertEqual(mock_init.call_args_list,
[mock.call(max_entries=24)])
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